<?
/**
 * This file is part of XNAT light.
 *
 * XNAT light is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * XNAT light is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with XNAT light.  If not, see <http://www.gnu.org/licenses/>.
 */
namespace NRG\Database\Mappers;

use NRG\Framework\Common\Registry as Registry;
use NRG\Framework\Exceptions\RegistryException as RegistryException;

/**
 * Base class for all database mappers
 *
 * @package NRG\Database\Mappers
 */
class Mapper
{
    /**
     * XNAT application object
     *
     * @var NRG\Xnat\Xnat
     */
    protected $_xnat;

    /**
     * Constructor
     *
     * @throws RegistryException
     */
    public function __construct()
    {
	if(!Registry::hasKey("xnat"))
	    throw new RegistryException(RegistryException::NO_KEY, "xnat");

	$this->_xnat = Registry::get("xnat");
    }
}
